Not sure if this is a bug or if it's something wrong from my end. I tried using the new Grease Pencil Modifier Edge Type, Silhouette, and it works fantastically, but after animating the camera, it would revert back to Contour, and everything else that I deselected would reactivate. So far the only thing I've been able to do with replicate that, is when I use the Camera's shift x and y options; if I go below or above 0, it would turn the Silhouette Edge Type back to Contour, in both viewport and render, even if I didn't change any settings. It doesn't happen when moving the location of the camera, but the reason I'm using the Shift x and y properties is so I can move the composition without changing the perspective. Here's an example from the current scene.
Before shifting
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